MTD Penalties for Landlords: What Happens If You Miss a Deadline?

You are a landlord, you have just realised an MTD deadline has slipped, and you want to know what actually happens. Here is the short version that most pages bury: for the 2026/27 tax year there are no penalties for missing a quarterly update. HMRC has said so in plain terms. That removes most of the panic, but it does not mean nothing matters, so this guide walks through what is and is not covered, three real landlord situations, and exactly what to do if a penalty notice lands on your mat.

Making Tax Digital for Income Tax becomes mandatory from 6 April 2026 for landlords with property and self-employment income above £50,000, falling to £30,000 from 6 April 2027 and £20,000 from 6 April 2028. If you are not sure whether you are even caught, start with the qualifying-income test and the threshold and exemptions guide, then come back here for the consequences of slipping once you are in.

The good news first: the 2026/27 soft landing

gov.uk states it directly: "There are no penalties for missing a quarterly update deadline for the 2026 to 2027 tax year." That is the soft landing, and it is real. If you miss a quarterly update in the first mandated year, you collect no penalty points and pay no £200 fine for that miss. HMRC is treating 2026/27 as a bedding-in year while landlords and software get used to the quarterly rhythm.

The catch is that the soft landing is narrow, and it is easy to over-read. It covers one thing only.

• Covered: missed or late quarterly update deadlines in 2026/27. No points, no £200.
• Not covered: your final declaration (the year-end submission that confirms your figures and replaces the self-assessment return) still sits in the points-based late-filing regime.
• Not covered: late payment of tax. There is only a first-year softening on the day-15 charge, not a holiday, so paying late still costs you.

From the 2027/28 tax year onwards the soft landing ends and points do attach to missed quarterly updates. The practical takeaway is that 2026/27 is your free run to get the routine right, because the same slip a year later starts to cost. If you want the official position, gov.uk publishes the full penalties for Making Tax Digital for Income Tax guidance.

Timeline: which penalties apply, year by year

The single most useful thing to fix in your head is that the rules differ by tax year and by the type of failure. This table sets out what bites and when. None of these are fees we charge. They are statutory penalties set by HMRC.

Tax year	Missed quarterly update	Late final declaration	Late payment of tax
2026/27 (first year)	No penalty (soft landing)	Points-based (FA 2021 Sch 24)	3% at day 15 (softened in the first year), 3% at day 30, 10% a year from day 31
2027/28 onwards	1 point per miss; £200 once you reach 4 points and for each later miss	Points-based (FA 2021 Sch 24)	4% at day 15, 4% at day 30, 10% a year from day 31

For the full quarterly calendar, including the exact submission dates and the calendar-quarter election, see the MTD quarterly deadlines guide.

How the points system works, in plain English

From 2027/28, late quarterly updates run on a points model rather than an immediate fine. You earn one penalty point each time you miss a quarterly update deadline. Nothing financial happens until you reach four points. Hit four, and you get a £200 penalty, and then a further £200 each time you miss another deadline while you are still at the threshold. The four-point threshold and the £200 figure both sit in Schedule 24 to the Finance Act 2021.

Points are not permanent. Below the threshold, a single point drops off 24 months after the deadline that caused it, as long as you keep filing on time in the meantime. Once you have actually reached the threshold, clearing the slate is harder: you need a clean run of 12 months meeting every deadline and you must have submitted all the returns that were due in the previous 24 months. Both limbs have to be satisfied before the total resets.

This is the conceptual shape. If you want to see how points and pounds accumulate across a full year of late filing, the worked points and late-payment guide sets out the numbers in detail.

What about the annual tax return (final declaration)?

Quarterly updates are not the whole obligation. After your fourth quarterly update you submit a final declaration by 31 January following the tax year. It confirms your full-year figures, adds anything outside the quarterly cycle, and replaces the old self-assessment return for income MTD covers.

Here is the correction that trips a lot of landlords up. The final declaration does not carry the legacy self-assessment penalty stack of a £100 automatic fixed penalty plus £10 a day and 5% milestones. That older daily-penalty regime applies to taxpayers who are not yet in MTD. Once you are inside MTD for Income Tax, late filing of the final declaration runs through the same points-based system as the quarterly updates, under Schedule 24 to the Finance Act 2021. One regime, not two layered on top of each other. The penalties, exemptions and appeals guide compares the MTD and non-MTD regimes side by side.

Late payment is different from late filing

Filing on time and paying on time are two separate duties with two separate penalty regimes. The soft landing is about late filing of quarterly updates. It does nothing for late payment of the tax you owe, which has only a modest first-year softening.

The shape, taken from gov.uk and reconciled with the underlying statute, is a two-stage charge plus interest:

• 2026/27: 3% of the unpaid tax once you are 15 days late (softened in this first year), a further 3% at 30 days, then interest of 10% a year running from day 31.
• 2027/28 onwards: 4% at day 15, 4% at day 30, then the same 10% a year from day 31.

So on a tax bill of, say, £5,000 left unpaid, the day-15 charge runs to over a hundred pounds before the second charge and the running interest even start. The percentages sit in Schedule 26 to the Finance Act 2021. The Finance Act 2021 (Increase in Schedule 26 Penalty Percentages) Regulations 2025, in force from 31 May 2025, set the 2026/27 figures (the first penalty up to 3% and the second penalty up to 10% a year). The further rise of the first penalty to 4% from 2027/28 is a separate, later increase, not made by those 2025 Regulations. Interest on the unpaid tax accrues separately from the original due date. For the full pound-by-pound effect at different bill sizes, see the worked late-payment guide.

Three landlord scenarios (corrected for the soft landing)

Generic penalty schedules rarely tell you what your own slip costs. These three anonymised situations do. They are illustrative, not real clients.

Single buy-to-let owner, one property, around £18,000 rent

A landlord with one let property crosses the £50,000 threshold on combined income and is mandated from April 2026. In 2026/27 they miss two quarterly updates while finding their feet. The outcome is nothing: no points, no £200, because the soft landing covers quarterly-update misses that year. The real lesson is hidden in the relief, because from 2027/28 those same two misses would each cost a point and start the climb towards the threshold.

Portfolio landlord, five properties, around £85,000 rent

A portfolio owner is habitually two to three weeks late with quarterly updates across both 2026/27 and 2027/28. The 2026/27 misses generate nothing. The 2027/28 misses each earn a point, and once the total reaches four, every further late update triggers a £200 penalty. Stack enough late quarters and the charges add up fast. The worked guide shows the cumulative figure for exactly this pattern.

The on-time filer who pays late

A landlord files every quarterly update and the final declaration on time, but pays the year-end balancing tax late. The soft landing does not help here at all, because it is a filing concession, not a payment one. The late-payment charges bite (3% at day 15 in 2026/27, with the first-year softening), and interest runs on top from the original due date. Filing diligently does not protect you if the money arrives late.

What to do if you get a penalty notice

A notice is not a final demand to be paid without thought. Work through it in order before you do anything.

1. Check it is even correct. If it penalises a missed quarterly update in the 2026/27 tax year, it should not exist, because there are no quarterly-update penalties that year. Query it rather than pay.
2. Note the 30-day window. The appeal right against an MTD penalty sits in Schedule 24 to the Finance Act 2021 (paragraph 22), and the appeal is treated like an appeal against a tax assessment, which imports the Taxes Management Act 1970 30-day notice rule. So you have 30 days from the date of the notice to appeal. Diary it immediately.
3. Consider a reasonable-excuse appeal. HMRC accepts serious illness, a close bereavement, or a proven software or systems failure. It rejects being too busy or not understanding the rules.
4. Consider a statutory review before tribunal. If HMRC rejects your appeal, you can ask for an independent internal review, and beyond that take it to the First-tier Tribunal.
5. Get specialist help where the exposure is material. The appeal mechanics and the leading tribunal cases are involved, and the clock is short.

The full statutory appeal test, including the case-law framework HMRC and the tribunal apply, lives in the penalties, exemptions and appeals guide. If your notice is actually an MTD scope or sign-up letter rather than a penalty, the letter from HMRC guide covers what that means.

Reasonable excuse: what HMRC actually accepts

The line between an accepted and a rejected excuse is about control. HMRC asks whether something genuinely outside your control stopped you filing, and whether you put it right as soon as you reasonably could.

Excuses that typically succeed:

• Serious illness that prevented you meeting the obligation
• The death of a close family member
• A documented software or HMRC systems failure
• Postal delays, where you can evidence them

Excuses that typically fail:

• Being too busy with property management
• Not understanding the new requirements
• Your accountant being unavailable
• Vague computer problems with no specific evidence

The practical tip that wins appeals is evidence captured at the time: screenshots of error messages, timestamps, and email correspondence with your software provider or HMRC. Reconstructed explanations weeks later carry far less weight. The exemptions and appeals guide sets out the statutory test in detail.

How to avoid penalties altogether

None of this is hard to avoid once the routine is in place. Keep your property income and expense records up to date monthly rather than reconstructing them in a quarterly rush. Use MTD-compatible software that tracks the deadlines for you. Set calendar reminders a fortnight before each quarter is due, and file a week early so a last-minute glitch never becomes a missed deadline. Many landlords simply hand the quarterly cycle and the year-end final declaration to a property accountant, who manages both together and absorbs the compliance burden.

Where this fits with the rest of the cluster

This page is the plain-English starting point for the consequences of a slip. For the deeper layers, follow the right thread: the worked points and late-payment guide for the actual numbers, the penalties, exemptions and appeals guide for the statute, exemptions and tribunal cases, the quarterly deadlines guide for the calendar, and the MTD overview for residential landlords for the bigger picture. While you are reviewing your wider position, it is also worth checking how Section 24 mortgage interest relief affects the rental profit you are reporting each quarter.